乙酰甲胺磷分子印迹聚合物识别特性的光谱研究

用紫外及红外分光光度法研究了印迹分子和单体之间的作用力,结果表明随着甲胺磷浓度的增加,紫外吸收曲线的最大吸收波长发生红移,说明两者之间存在氢键作用力;经红外光谱分析进一步表明乙酰甲胺磷的—NH和PO可以和甲基丙烯酸的—COOH之间有氢键作用。采用悬浮聚合法制备乙酰甲胺磷分子印迹聚合物微球,除去印迹分子的聚合物留下了对印迹分子特异识别的结合位点。此聚合物可用来做吸附填料,分离富集环境样品中的乙酰甲胺磷。

Spectroscopy Study on the Molecular Recognition of the Acephate Imprinted Molecular Polymer

The force between the imprinted molecular and functional monomer was studied by ultraviolet and infrared spectrometry.The λmax caused red shift was found from 241nm to 245nm,displaying that acephate and α-MAA interacted with each other by hydrogen bonding.The infrared spectrometry of MIPs also indicated that MIPs contained the group which could interact with acephate molecular.So the imprinted polymeric microspheres can be used for enrichment and pretreatment of trace acephate residue in environment and food samples.